Recent Patents on Engineering最新文献

{"title":"The Influence of Additional Virtual Synchronous Generator Technology in VSC-MTDC Systems with Wind Power on System Frequency","authors":"Congshan Li, Kefeng Zhao, Ping He, Zikai Zhen","doi":"10.2174/0118722121294488240223075517","DOIUrl":"https://doi.org/10.2174/0118722121294488240223075517","url":null,"abstract":"\u0000\u0000A frequency control strategy is proposed based on additional virtual synchronous\u0000generator technology for voltage source converter-based multi-terminal high voltage direct\u0000current systems with wind power.\u0000\u0000\u0000\u0000This strategy addresses the system's inertia reduction and frequency stability issues caused\u0000by integrating large amounts of wind power through multi-terminal DC transmission. Firstly, the\u0000virtual synchronous generator mathematical model is constructed based on the system structure. Secondly,\u0000for the problem of zero rotational inertia of voltage source converter in a flexible DC transmission\u0000system, based on the P-U droop control method of the converter station, additional virtual\u0000synchronous control generation technology is applied to simulate the P-f droop characteristics of the\u0000synchronous generator by adding virtual rotational inertia, so that the converter has the inertial response\u0000of synchronous generator to realize primary frequency regulation.\u0000\u0000\u0000\u0000Finally, the simulation is verified on the PSCAD/ EMTDC platform with an example of a\u0000three-terminal parallel MTDC transmission system.\u0000\u0000\u0000\u0000the analyzed results demonstrate that the virtual synchronous generator control strategy\u0000is very valuable and useful for improving the frequency performance of the system.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":"167 S356","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140428674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Secure Vehicle-to-Vehicle Communication Using Routing Protocol Based On Trust Authentication Secure Sugeno Fuzzy Inference System Scheme","authors":"Anupama K N, R. Nagaraj","doi":"10.2174/0118722121269253240214075231","DOIUrl":"https://doi.org/10.2174/0118722121269253240214075231","url":null,"abstract":"\u0000\u0000Vehicular Ad-hoc Network (VANET) is wireless communication between\u0000Roadside vehicles and vehicle infrastructure. Vehicle Ad Hoc Network (VANET) is a promising\u0000technology that effectively manages traffic and ensures road safety. However, communication in an\u0000open-access environment presents real challenges to security and privacy issues, which may affect\u0000large-scale deployments of VANETs. Vehicle identification, classification, distribution rates, and\u0000communication are the most challenging areas in previous methods. Vehicular communications face\u0000challenges due to vehicle interference and severe delays.\u0000\u0000\u0000\u0000To overcome the drawbacks, this work proposed a new method based on the Artificial Neural\u0000Network Trust Authentication Secure Sugeno Fuzzy System (AN2-TAS2FS). Vehicular Ad Hoc\u0000Networks (VANET) are required to transmit data between vehicles and use traffic safety indicators.\u0000Improved Cluster-Based Secure Routing Protocol (ICSRP). Artificial Neural Network Based Trust\u0000Authentication Secure Sugeno Fuzzy System (AN2-TAS2FS) used the symmetric key to increase the\u0000security performance of VANET. Use ANFIS-based Secure Sugeno Fuzzy System for calculating\u0000the node weights for data transferring; reduced the attacks accuracy of network malicious attacks.\u0000\u0000\u0000\u0000To overcome the drawbacks, this work proposed a new method based on Artificial Neural Network Based Trust Authentication Secure Sugeno Fuzzy System (AN2-TAS2FS). Vehicular Ad Hoc Networks (VANET) are required to transmit data between vehicles and use traffic safety indicators Improved Cluster-Based Secure Routing Protocol (ICSRP). Artificial Neural Network Based Trust Authentication Secure Sugeno Fuzzy System (AN2-TAS2FS) used the symmetric key to increase the security performance of VANET.\u0000\u0000\u0000\u0000In the improved cluster-based VANET routing protocol, each node obtains an address using a\u0000new addressing scheme between the wireless vehicle-2-vehicle (V2V) exchanges and the Roadside\u0000Units (RSUs). It will explore the effectiveness of the Secure Sugeno Fuzzy System-based adaptation\u0000term Enhanced Cluster-based routing protocol in finding the vehicle's shortest-path for transmission.\u0000\u0000\u0000\u0000Simulation results show that in the proposed ANN-based Trust Authentication Secure\u0000Sugeno Fuzzy System (AN2-TAS2FS) analysis, the packet delivery ratio is 93%, delay performance\u0000is 0.55sec, throughput performance is 94%, bandwidth is 55bits/sec, Network security is 92%, and\u0000the transmission ratio is 89%, attack detection is 90%.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":"204 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140437926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Machine Learning (ML) Techniques in Healthcare Systems: A Mini Review","authors":"P. Singha, Barsha Panda, Syed Benazir Firdaus, D. Ghosh","doi":"10.2174/0118722121291771240216044918","DOIUrl":"https://doi.org/10.2174/0118722121291771240216044918","url":null,"abstract":"\u0000\u0000Artificial intelligence (AI) has made its own place in the present world. Almost in every\u0000field, AI is being utilized for betterment and advancement. Machine learning (ML) is a part of AI\u0000and has been applied extensively currently in various fields of science and technology including\u0000healthcare system. ML is the technique that uses AI to analyze, interpret and make decisions.\u0000To summarize the applications of ML in various healthcare systems in order to understand the\u0000strength and loopholes of the use of ML in medical science.\u0000The mechanisms and methods of ML approach in various medical issues have been analyzed and\u0000discussed. ML technique is being used to make decisions in medical cases, for determining the\u0000treatment regime of a particular patient, for designing and developing drugs, in personalized medicine,\u0000in designing and selecting diagnoses for any particular disease, for automated tracking of patient's\u0000recovery. Available clinical data and history are being used by ML techniques to compare,\u0000classify, select and execute results for any task being assigned. In a nutshell, ML uses earlier available\u0000information and data about the disease, the treatment protocols followed, and the results in correspondence\u0000with the clinical symptoms and pathological findings.\u0000Several achievements using ML in the healthcare system, yielded significant novel results that have\u0000been patented. There have been several thousand patents in the field of application of ML in\u0000healthcare systems from the years 2012 to 2023.\u0000Though, ML in healthcare comes with some risks and unknown possibilities yet, restricted and monitored\u0000application of ML in healthcare may hasten the healthcare system, save time, help to make\u0000efficient decisions in non-invasive ways, and may open up new possibilities in the healthcare system.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":"15 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140440840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review on Detection and Prevention Techniques of Scripting Attacks:\u0000Gaps, Challenges and Suggestions","authors":"Seema Sharma, Narendra Singh Yadav","doi":"10.2174/0118722121293163240212030405","DOIUrl":"https://doi.org/10.2174/0118722121293163240212030405","url":null,"abstract":"\u0000\u0000Web apps hold important information, such as login tokens and individual data, and cybercriminals\u0000repeatedly target attackers. Cross-site scripting is one of the most frequent vulnerabilities\u0000in web apps. Several techniques and patents are used to mitigate these vulnerabilities. Several\u0000100 articles from a review of research papers published between 2005 and 2023 were considered.\u0000This paper reviewed different techniques and tools to detect cross-site scripting attacks, and it will be\u0000helpful to understand, analyze, and develop a strategy to deal with them. This paper focuses on different\u0000methods and tools for identifying cross-site scripting (XSS) attacks. Also, it depicts the\u0000strengths and shortcomings of the existing proposed method. Additionally, it will help to understand\u0000existing open issues or challenges faced by previous researchers.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":"1 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140442727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on High-speed Electric Spindle Cooling Devices and Thermal Error Compensation Technology","authors":"Yaonan Cheng, Shenhua Jin, Shilong Zhou, Kezhi Qiao, Jing Xue","doi":"10.2174/0118722121280172231228102221","DOIUrl":"https://doi.org/10.2174/0118722121280172231228102221","url":null,"abstract":"\u0000\u0000When computerized numerical control (CNC) machine tools are working,\u0000the electric spindle generates serious heat, which can easily cause the thermal elongation of the spindle\u0000and generate thermal errors. Designing cooling devices to control the generation of thermal errors\u0000in the spindle and utilizing thermal error compensation techniques for error compensation are essential\u0000for improving machining quality and productivity.\u0000\u0000\u0000\u0000By summarizing the current status of research on cooling devices and compensation technology\u0000of electric spindles in recent years, some conclusions have been drawn in this work to propose\u0000the future research direction.\u0000\u0000\u0000\u0000By reviewing patents on cooling devices and thermal error compensation technology of\u0000high-speed electric spindles published in recent years, we have explored the ideas for the improvement\u0000of existing cooling devices and compensation technology.\u0000\u0000\u0000\u0000Some problems of the patents on current cooling devices and thermal error compensation\u0000technology are analyzed, and future research directions are proposed, respectively.\u0000\u0000\u0000\u0000As spindle power and speed continue to increase, the existing spindle cooling device\u0000and compensation technology also need to be continuously improved. Designers use intelligent technology\u0000to monitor the temperature changes during the work of the spindle and fast and accurate control\u0000of the cooling system so that the high-speed spindle cooling device tends to be intelligent. Aiming\u0000at the thermal error generated in the spindle working process, the designer enhances the error\u0000compensation effect by continuously improving and upgrading the key steps in the thermal error\u0000compensation technology, which in turn improves the spindle machining accuracy.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":"34 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139840156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on High-speed Electric Spindle Cooling Devices and Thermal Error Compensation Technology","authors":"Yaonan Cheng, Shenhua Jin, Shilong Zhou, Kezhi Qiao, Jing Xue","doi":"10.2174/0118722121280172231228102221","DOIUrl":"https://doi.org/10.2174/0118722121280172231228102221","url":null,"abstract":"\u0000\u0000When computerized numerical control (CNC) machine tools are working,\u0000the electric spindle generates serious heat, which can easily cause the thermal elongation of the spindle\u0000and generate thermal errors. Designing cooling devices to control the generation of thermal errors\u0000in the spindle and utilizing thermal error compensation techniques for error compensation are essential\u0000for improving machining quality and productivity.\u0000\u0000\u0000\u0000By summarizing the current status of research on cooling devices and compensation technology\u0000of electric spindles in recent years, some conclusions have been drawn in this work to propose\u0000the future research direction.\u0000\u0000\u0000\u0000By reviewing patents on cooling devices and thermal error compensation technology of\u0000high-speed electric spindles published in recent years, we have explored the ideas for the improvement\u0000of existing cooling devices and compensation technology.\u0000\u0000\u0000\u0000Some problems of the patents on current cooling devices and thermal error compensation\u0000technology are analyzed, and future research directions are proposed, respectively.\u0000\u0000\u0000\u0000As spindle power and speed continue to increase, the existing spindle cooling device\u0000and compensation technology also need to be continuously improved. Designers use intelligent technology\u0000to monitor the temperature changes during the work of the spindle and fast and accurate control\u0000of the cooling system so that the high-speed spindle cooling device tends to be intelligent. Aiming\u0000at the thermal error generated in the spindle working process, the designer enhances the error\u0000compensation effect by continuously improving and upgrading the key steps in the thermal error\u0000compensation technology, which in turn improves the spindle machining accuracy.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":"79 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139780255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Space Docking Simulation Simulator Overview","authors":"Yuan Zhang, Yibing Wang","doi":"10.2174/0118722121278354240131121043","DOIUrl":"https://doi.org/10.2174/0118722121278354240131121043","url":null,"abstract":"\u0000\u0000Docking mechanism ground simulation test technology has been a significant issue in the aerospace industry. Docking mechanisms must pass various conventional evaluation\u0000tests as a class of electromechanical space products and other space products. Due to the unique nature of the working object environment in space engineering, it is very expensive to simultaneously\u0000simulate the docking work under space conditions and conduct ground reproduction tests, so the test\u0000technology of the docking mechanism must be thoroughly investigated.\u0000\u0000\u0000\u0000This paper reviews patents on aircraft ground docking and space environment simulation\u0000systems to provide insights and references to scholars and researchers in spacecraft simulator manufacturing.\u0000\u0000\u0000\u0000The representative patents associated with each simulation equipment for space docking\u0000simulators, including mechanical docking dynamics equipment, space-integrated environment simulation experimental equipment, and thermal vacuum experimental equipment, are described by analyzing the structural functions of these simulators and elaborating on their operating principles and\u0000characteristics.\u0000\u0000\u0000\u0000By describing various types of space simulators, the current direction of space docking simulators can be optimized, and their future development direction is summarized and analyzed.\u0000\u0000\u0000\u0000The comprehensive environmental reproduction of the space docking simulator facilitates the examination of actual problems and potential flaws in spacecraft and has a significant effect\u0000on the advancement of the space field.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":"50 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139964949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Topology Optimization of Additive – Manufactured Autonomous Ground\u0000Vehicle Mount","authors":"Amjed Al-Fahoum, Hamzah A. Elsaaideh","doi":"10.2174/0118722121280402231227074623","DOIUrl":"https://doi.org/10.2174/0118722121280402231227074623","url":null,"abstract":"\u0000\u0000The existence of substantial amounts of comparatively unused material\u0000inside a certain section indicates a deficiency in resource utilization. The existence of stress concentrations leads to a decrease in both the rigidity and durability of the component\u0000\u0000\u0000\u0000Using finite element analysis (FEA), additive manufacturing (AM), and topology optimization (TO) together in this work led to a new patent for making a lightweight part for an unmanned ground vehicle (UGV). Topology optimization is crucial for improving the performance of\u0000additive manufacturing and achieving design goals. The process of engineering design frequently\u0000leads to mechanical design being characterized by heightened complexity and improved efficiency,\u0000owing to its need for exploration and iteration. Employing additive manufacturing and topological\u0000optimization methodologies, we developed the optimal prototype. Using ANSYS software makes it\u0000possible to change the engineering principle of topology optimization so that it works with additive\u0000manufacturing. At the same time, we are doing a full evaluation to see if adding topology optimization is possible, taking into account its pros and cons.\u0000\u0000\u0000\u0000The results of the study reveal that the proposed intervention has the potential to address\u0000other stress-related illnesses. The preliminary design proposal projected a cost of 400 Jordanian\u0000dinars (JD).\u0000\u0000\u0000\u0000However, through the process of optimization, we successfully achieved the ultimate\u0000design at a reduced cost of 200 JD. The revised design not only provides cost savings but also exhibits greater eco-friendliness.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":"176 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140485271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Review on Recent Patents for Oil Mist Separation Devices","authors":"Yunfeng Li, Xinming Xu, Ming Li, Ruoxuan Li, Hang Zhang, Ao Tian","doi":"10.2174/0118722121280764240117113538","DOIUrl":"https://doi.org/10.2174/0118722121280764240117113538","url":null,"abstract":"\u0000\u0000Oil mist separation technology and oil mist separation devices are indispensable\u0000components of modern industry and engines and are important means to improve air quality and\u0000reduce oil mist diffusion. However, in the study of their separation efficiency and oil droplet\u0000collection, there are still some techniques that need breakthroughs to be able to better separate oil\u0000mist in the future.\u0000Through the introduction and discussion of the patent characteristics of oil mist separation devices in\u0000recent years, some valuable conclusions are summarized, and future research and development have\u0000been prospected.\u0000The patents of various separation devices were studied, and the patents and research prospects of oil\u0000mist separation devices were summarized.\u0000With the development of the machinery industry, oil mist separation has become more and more\u0000important, so a separation device is required to realize the separation, collection, recycling, and\u0000utilization of oil mist.\u0000By elaborating on the structural characteristics of the separation device, the importance of the\u0000separation device is discussed. By comparing these patents, it is concluded that electrostatic\u0000separators and composite separation devices are the main development trends of future separation\u0000devices.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":"59 52","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140487133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design of Human and Implanted Knee Model using Anthropometric Data for Total Knee Replacement","authors":"Rashmi Shahu","doi":"10.2174/0118722121268112240122110810","DOIUrl":"https://doi.org/10.2174/0118722121268112240122110810","url":null,"abstract":"\u0000\u0000The objective of this study is to estimate the mismatch error between the human\u0000knee and implanted knee for total knee replacement with the help of data analysis considering\u0000the anthropometric and implant data for the Indian population.\u0000\u0000\u0000\u0000Anthropometric data collected for 150 cases from the hospital was contrasted with the\u0000typical implant data from the Johnson & Johnson Company and Zimmer. In the data collected for\u0000150 cases, 91 were female patients and 59 were male patients. The maximum cases were for osteoarthritis\u0000and rheumatoid arthritis. For each patient—male and female—the mismatch error was computed\u0000separately. Major focus of the study was laid on the femoral condyle.\u0000\u0000\u0000\u0000Zimmer implant mismatch errors were computed as follows: -1.18 for A/P and 4.95 for M/L\u0000in patients who were male; -5.6 for A/P and -3.3 for M/L in patients who were female and male. -3.4\u0000for A/P and -0.4 for M/L in female patients; 1.85 for A/P and 8.18 for M/L in male patients was the\u0000mismatch error computed for Johnson & Johnson implants. The total discrepancy in implant results\u0000was 1.83 for men and -4.4 for women for Zimmer, and 5.01 for men and -1.89 for women for Johnson\u0000& Johnson. A mismatch of -19 (for females), -15 (for men) was identified for Zimmer, and -11\u0000(for females), -7 (for males) was found for Johnson & Johnson. The femoral condyle was the cause\u0000of several inaccuracies.\u0000\u0000\u0000\u0000On the basis of results from data analysis it was found that female patients were more\u0000into pray of high mismatch errors. Also, femoral condyle mismatch was majorly responsible for the\u0000improper fitting of implants error. So, a 3-D model was developed using Slicr3r to justify that the\u0000gap between the implant and implanted knee must not exceed 2mm for femoral condyle in order to\u0000get the best fit. A patent on Asymmetric Prosthetic Tibial Component is available to explain a similar\u0000concept.\u0000","PeriodicalId":40022,"journal":{"name":"Recent Patents on Engineering","volume":"21 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140488103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}